<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>
    <h1>{{ request.session.user_name }}!  欢迎回来！</h1>
    <p>
        <a href="/logout/">登出</a>
    </p>
</body>
</html>